Answer:
The surface temperature of the brake shoe and drum is 95°C.
Explanation:
Given that,
Rate of heat = 75 W
Surface area = 0.1 m²
Heat transfer coefficient = 10 W/m²
Temperature = 20°C
We need to calculate the surface temperature of the brake shoe and drum
Using equation of heat
Put the value into the formula
Hence, The surface temperature of the brake shoe and drum is 95°C.
Answer:
0 MN/C, 2.697 MV
4.1953 MN/C, 1.2586 MV
19.2642857143 MN/C, 2.697 MV
Explanation:
k = Coulomb constant =
Electric field at r = 8 cm
E = 0 (inside)
Electric potential is given by
Electric potential is 2.697 MV
r = 30 cm
Electric field is 4.1953 MN/C
Electric potential is 1.2586 MV
r = R = 14 cm
The electric field is 19.2642857143 MN/C
The potential is 2.697 MV
Answer:
Please find attached the plot of distance against time created with Microsoft Excel
Explanation:
The table of the information about the train journey is presented here as follows;
From the table data, the distance against time plot can be created by entering the data into a spreadsheet such as Microsoft Excel, then selecting a Chart option in the Ribbon under the Insert Menu after selecting the data
Answer:
43°
Explanation:
Sin tita m= mlambda/d
Sin 20°= lambda/d
Sin tita 2= 2(lambda/d)
Sin tita 2= 2 sin 20
Sin tita 2= 0. 684
Tita 2= sin-1(0. 684)
Tita 2= 43°
Thus, the angle of the second order maximum is 43°
Answer:
B
Explanation:
Q=mc (75-15)
=5.0kg×2.6×1000J/kg.K×50K